Home / 198,876.75-274,444.66-108,230.78

Finding the Fourth Proportional to 198,876.75, 274,444.66 and 108,230.78

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Solution

The fourth proportional to 198,876.75, 274,444.66 and 108,230.78 is: 149,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,876.75 : 274,444.66 = 108,230.78 : x
  2. Step 2: Convert to fraction form
    198,876.75/274,444.66 = 108,230.78/x
  3. Step 3: Cross multiply
    198,876.75x = 274,444.66 × 108,230.78
  4. Step 4: Simplify right side
    198,876.75x = 29,703,358,094.52
  5. Step 5: Solve for x
    x = 29,703,358,094.52/198,876.75
  6. Step 6: Final answer
    x = 149,355.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.